Elephants (IMAGE) Princeton University Caption Researchers from Princeton University and the University of California-Berkeley found that a one-time legal sale of 108 metric tons of stockpiled ivory that was intended to stifle elephant poaching in Africa actually expanded the black market for ivory and led to the slaughter of more elephants. The researchers found that the partial legalization stimulated new demand for ivory and made concealing illegal ivory easier. The booming international black market for ivory is thought to have led to the slaughter of an estimated 100,000 elephants from 2011 to 2014. Credit Photos by Nitin Sekar Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.